JPS63297928A - High frequency heater - Google Patents

Abstract

PURPOSE:To carry out the functions of three sets such as a microwave oven, an electric oven, and a home bakery in one set by a method wherein the high speed rotation of kneading blades at the time of bread baking or the low speed rotation of a turn table at the time of high frequency heating is selectively and properly used by a variable speed driving unit using exclusive motors of high and low speed as driving sources. CONSTITUTION:Before bread baking by the use of a bread container 12, the container 12 is put on the inner bottom of a heating chamber 1 and the rotating shaft 15 of kneading blades 14 is connected to a driving shaft 17. Dough 13 is put on the container and the blades 14 are rotated at the speed of around 200rpm by a motor 23 for high speed rotation to knead the dough 13 and then heating by using heaters 4, 5 is properly carried out and the dough is baked through the processes of fermentation, degassing by the rotation of the blades for a few seconds, etc. At the time of high frequency heating a turn table 19 on which an article 18 to be heated is put and a rotating shaft 21 are connected to the shaft 17 and put on the inner bottom of the chamber 1 and the table 19 is rotated at the speed of 5-6rpm by a motor 22 for lower speed rotation of a variable speed driving unit 16. The article 18 is heated and cooked by high frequency energy supplied from a high frequency oscillator 2 into the inside of the chamber 1.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to an improvement in a high frequency heating device having a stirring function for food.

BACKGROUND OF THE INVENTION A high-frequency heating device having a function of stirring food is proposed in Japanese Utility Model Application Publication No. 55-71489.

In this conventional example, a container is detachably attached to a turntable rotatably provided in a heating chamber.

A stirring blade provided inside the container is detachably attached to a fixed shaft passing through the rotating shaft of the turntable.

The problem that the invention aims to solve In the conventional example above, the stirring blade is stationary.

Since the container attached to the turntable itself rotates, if it rotates at high speed (relatively faster than a normal turntable, for example, 200 rpm), the object to be heated will fly out due to inertia. Therefore, the rotation speed of the turntable during normal high frequency heating is 5 to 6.
rprn, and sufficient stirring performance cannot be obtained.

Means to solve problems The present invention has a variable speed drive section visible at the bottom of the heating chamber.

Connect the kneading blade inside the bread container or the turntable to it, and rotate the turntable at low speed, for example, 5 to 6 seconds.
The kneading blades in the bread container are driven at high speed rotation, for example, 5 to 6 rpm, and the variable speed drive unit is driven by a motor for high-speed rotation of the kneading blades and a motor for low-speed rotation of the turntable. It is composed of

Operation When using a turntable, high-frequency heating treatment is performed while the object to be heated itself is rotated at a low speed of about 5 to 6 rpm using a low-speed rotation motor. When using a bread container, the bread container is used in a stationary state, and the kneading blades are rotated by a high-speed rotating motor of around 20 rpm to knead the bread ingredients, which are then heated by a heater and fermented.

It goes through degassing, shaping and fermentation, and then baking.

EXAMPLE The structure and operation of the high-frequency heating device of the present invention will be explained by way of an example.

FIG. 1 is an enlarged view of the main parts of the high-frequency heating device of the present invention, and FIGS. 2 to 4 are schematic diagrams showing heating states depending on the application.

In FIGS. 2 to 4, 1 is a heating chamber, 2 is a waveguide 6
This is a high frequency oscillator that supplies high frequency energy to the heating chamber 1 through the heating chamber 1. 4 is the upper heater.

5 is the lower heater, which is the heating source for oven cooking such as cakes and bread baking. Reference numeral 6 denotes a plate tray that supports a square plate 7 (FIG. 6) used during oven cooking.

8 is a door that opens and closes the front entrance of heating chamber 1, ? is an operation panel for controlling heating.

10 is an outer box, and 11 is a leg attached to the bottom surface of the outer box.

Reference numeral 12 denotes a bread container in which bread ingredients 16 such as flour, yeast, and water are kneaded together and baked by heating with a heater, and is installed on the bottom surface of the heating chamber 1.

14 is a kneading blade rotatably provided in the lower part of the bread container 12, and 15 is a rotating shaft of the kneading blade 14.

In FIG. 1, reference numeral 16 denotes a low-speed rotation motor 22 that rotates a turntable 19 on which an object to be heated 18 is placed at a low speed of 5 to 6 rpm during high-frequency heating, and a low-speed rotation motor 22 that rotates a turntable 19 on which an object to be heated 18 is placed at a low speed of 5 to 6 rpm during high-frequency heating, and a low-speed rotation motor 22 that rotates a kneading blade 14 at a low speed of about 20 rpm when baking bread using the bread container 12. This is a variable speed drive section whose driving source is a high speed rotation motor 26 that rotates at high speed. 17 is a small boo! J 241 belt 25. Large pulley 26
This is a drive shaft for transmitting the information to the kneading blade 140 and the rotating shaft 15 via the kneading blade 140. Reference numeral 27 denotes a rotating shaft 2 of a rotary table 20 that rotatably supports the turntable 19 by applying the rotational force of the motor 22.
This is a drive shaft for transmitting power to the motor.

28 is a bearing for the rotating shaft 15, and 29 is a bearing for the drive shaft 17.

Next, the operation of the embodiment configured as described above will be explained.

When baking bread using the bread container 12, as shown in FIG. 1, the bread container 12 is installed on the bottom surface of the heating chamber 1, and the rotating shaft 15 of the kneading blade 14 is connected to the drive shaft 17, as in a home bakery. . The bread ingredients 13 are put in the bread container 12, and the kneading blades 14 are rotated at around 200 rpm by the high-speed rotation motor 26 of the variable speed drive unit 16 by operating the operation panel 9 to knead the bread ingredients 16. Add heating according to step 5 as appropriate.

After fermentation and degassing by rotating the kneading blade for a few seconds, the dough is baked. These steps are executed by a controller (not shown) within the operation panel 9. In this case, the bread has the cross-sectional shape of the bread container 12 and becomes a so-called mountain-shaped bread with a raised upper part. When making bread of other shapes such as rolls, knead, ferment, degas, etc. in the bread container 12 in the same way as above, and then transfer the dough to the bread container 1.
2 is taken out from the heating chamber 1, the bread raw material 13 is divided into pieces according to the desired type of bread, rolled into balls, and placed on a square plate 7 in the same manner as in an electric oven as shown in Fig. 3, from shaping and fermentation to baking. I do.

When high-frequency heating is performed, a turntable 1 on which the object to be heated 18 is placed, as shown in FIG.
9 and a rotary shaft 21 of a rotary table 20 supporting this turntable 19 are connected to a drive shaft 27 and installed on the inner bottom surface of the heating chamber 1, and the turntable 19 is rotated from 5 to Rotate at 6 rpm. The object to be heated 18 is cooked by high frequency energy supplied from the high frequency oscillator 2 into the heating chamber 1 .

Note that the rotation speed of 5 to 6'Pm+200 rpm is changed depending on the size of the heating source, the type of food, etc. Also, the material of the bread container should be appropriate for the type of heating source.

Effects of the Invention As described above, according to the present invention, the variable-speed drive unit selectively uses either high-speed rotation of the kneading blades during bread baking or low-speed rotation of the turntable during high-frequency heating. Be able to perform appropriate cooking operations.

Furthermore, the high-frequency heating device of the present invention has the functions of 6 devices such as a microwave oven, an electric opener, and a home bakery.
It can be carried out on a stand, which is advantageous in terms of economy and space saving, and the effects of carrying out the process are significant.

Furthermore, the variable speed drive unit uses dedicated high and low speed motors as drive sources, ensuring reliable operation.

[Brief explanation of drawings]

FIG. 1 is an enlarged view of the main parts of a high-frequency heating device according to an embodiment of the present invention, and FIG. 2 is a cross-sectional view of the main parts when the high-frequency heating device according to an embodiment of the present invention is used as a home bakery. 6 is a sectional view of the main part when a turntable 19 is installed in place of the bread container 12 in FIG. 2 and used as a microwave oven, and FIG. 4 is a sectional view of the bread container 12 in FIG. 2. It is a sectional view of a main part when a square plate 7 is installed instead and used as an electric oven. 1... Heating chamber. 2...High frequency oscillator. 4.5...Top and bottom heaters. 12...Bread container. 14...knead feathers. 16... Variable speed drive section. 19... Turntable. 22...Low speed rotation motor. 23...High-speed rotation motor.

Claims (1)

[Claims] In a high-frequency heating device having a food stirring function, a variable-speed drive unit (16) is installed on the inner bottom surface of a heating chamber (1) that uses a high-frequency oscillator (2) and upper and lower heaters (4) and (5) as heat sources.
Look into the kneading blades (1) inside the bread container (12).
4) or turntable (19) and kneading blades (
14) at high speed rotation, for example, 200 rpm, and drive the turntable (19) at low speed rotation, for example, 5 to 6 rpm;
and a high frequency heating device characterized in that the variable speed drive unit (16) uses a high speed rotation motor (23) of the kneading blade (14) and a low speed rotation motor (22) of the turntable (19) as drive sources. .